[user5994461]

It's actually counter intuitive but in practice, anti virus are useless for non advanced users because they don't understand it.

A normal people get a message "Virus win32.badthingy detected: -delete- -quarantine- -ignore-". He clicks on the little "x" in the corner of the window.

-- true story

[01Michael10]

Your actual argument is the stupidest of the stupidest users can't read a prompt so AV is useless for any user? LOL